#include <iostream>
#include <string>
using namespace std;

int main() {
	string S1, S2;
	cin >> S1 >> S2;
	if ("Sat" == S1 || "Sun" == S1) {
		if ("Sat" == S2 || "Sun" == S2) cout << "8/33";
		else cout << "8/32";
	}
	else cout << "8/31";
}